Fitbit Flex 2 vs. Casio G-Shock GBA800 vs. Garmin Vivosmart 4 vs. HTC re Grip vs. Apple Series 6

 
Flex 2
G-Shock GBA800
Vivosmart 4
re Grip
Series 6
 FitbitFlex 2Remove Buy NowCasioG-Shock GBA800Remove Buy NowGarminVivosmart 4Remove Buy NowHTCre GripRemove Buy NowAppleSeries 6Remove Buy Now

Basic Info

Suggested Price$100$120$130$199$399
Release20162018201820202020

Activity & Fitness

Calories
Cycling (Bicycling)
Distance
Heart
Oxygen
Sleep
Steps
Swim

Battery

Duration5 days2 years7 days5 hours to 2.5 daysNot yet
Rechargeable

Compatibility

Android
iOS
Windows Phonen/aNA
MacNA
WindowsNA

Connectivity

Bluetooth
Cellular
GPS
NFC
Wi-Fi

Display

Colorn/a
Resolutionn/a48 x 128160 x 32384 x 480
Sizen/a0.74 inches1.8 inches40mm
Touchn/a
TypeLEDOLEDPMOLEDMicroLED

Functions

Audio Speaker
Clock
Phone
Vibration
Voice

Hardware

Accelerometer
Barometer or Altimeter
Ultraviolet Sensor5 ATM
Water Resistance5 ATM20 ATM5 ATMIP57

Notifications

Phone
Emails
Texts

Software

Operating Systemn/aNAWatchOS 5
Apps
Music

All Wearables